Influences of different altitude environments on performance of portable dental unit
10.19745/j.1003-8868.2024092
- VernacularTitle:不同海拔环境对便携式牙科治疗机工作性能的影响研究
- Author:
Yu ZHANG
1
;
Yuan-Shu PANG
;
Xiao-Li YANG
;
Xiao-Fei LI
;
Chong-Jian FU
Author Information
1. 联勤保障部队第960医院口腔科,济南 250031
- Keywords:
portable dental unit;
plateau environment;
working performance
- From:
Chinese Medical Equipment Journal
2024;45(5):52-55
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the influences of different altitude environments on the performance of the portable dental unit.Methods Three regions with increasing altitudes(A(70.0 m),B(3 857.0 m)and C(4 820.0 m))were selected,and relevant environment parameters in the regions were measured including average room temperature,average atmospheric pressure and average air density.The performance indicators of the portable dental unit were tested in the three regions such as preparation time(Tprep),continuous working time(Tcont),working heat generation and handpiece output pressure,and the test results of region A were compared with those of region B and C.SPSS 29.0 statistical software was used for data analysis.Results The average atmospheric pressure and average air density were significantly lower in region B and C than in region A,and the differences were statistically significant(P＜0.05).The portable dental unit had the average Tprep prolonged andTcont shortened significantly in region B and C when compared those in region A(P＜0.05),whose mean working heat generation after 15-min operation was higher and mean handpiece output pressure was lower obviously in region B and C than in region A(P＜0.05).Conclusion High er altitude environments can have negative effects on the performance of the portable dental unit when compared with lower altitude environments.[Chinese Medical Equipment Journal,2024,45(5):52-55]
